Update venue location

* Change address per comments in #109
* Update embedded map, ditto.
Don't show cancelled proposals in review section

* Exclude cancelled proposals from the reviewers' "Voting Status"
  pages and tables.
* Clearly label a proposal as Cancelled if someone ends up on its
  detail page somehow anyway.
Merge pull request #184 from caktus/feature/109-update-map

Update venue location
Merge pull request #185 from caktus/feature/185-hide-canceled-proposals-from-review

Cancelled proposal not shown in Dashboard
Easier team permission admin

Use horizontal filters in the admin for adjusting team permissions.
The permission list is long and trying to multi-select in a small
list box is painful.
Organize sponsor logo file zip into directories

Issue #187
Make review feedback not a Markdown widget

Review feedback wasn't supposed to be in markdown. Change the
widget to a regular text area.
Merge pull request #186 from caktus/feature/easier-team-permission-admin

Easier team permission admin
Merge pull request #187 from caktus/feature/187-organize-zip

Organize logos in sponsor download file
allowing comment linebreaks to render
Merge pull request #189 from caktus/feature/review-feedback-not-markdown

Make review feedback not a Markdown widget
Merge branch 'develop' into staging